.navigation-bar {
    width: 100%;
    height: 52px;
    background-color: #333333;
}

/* .w {
    width: 1240px;
    height: 52px;
    margin: 0 auto;
} */

.navigation-bar .w ul {
    float: right;
}

.navigation-bar .w li {
    float: left;
    line-height: 52px;
}

.navigation-bar .w a {
    border-right: 1px solid #585858;
    padding: 0 16px;
    font-size: 14px;
    color: #dcdcdc;
}

.navigation-bar .w a span {
    display: inline-block;
    width: 11px;
    height: 16px;
    margin-right: 8px;
    background: url(../images/sprites.png) no-repeat -160px -70px;
    vertical-align: middle;
}

.navigation-bar .w li:last-child a {
    border-right: 0;
}

/* 头部 */
.header {
    margin-top: 30px;
    height: 70px;
}

.logo {
    float: left;
    width: 207px;
    height: 70px;
}

/* logo */
.header .logo a {
    display: block;
    width: 207px;
    height: 70px;
    background: url(../images/logo.png) no-repeat;
    background-size: contain;
}

/* nav */
.nav {
    float: left;
    height: 70px;
    margin-left: 40px;
}

.nav ul li {
    float: left;
    line-height: 70px;
    margin-right: 48px;
}

.nav ul li a {
    font-size: 16px;
    color: #333333;
    padding-bottom: 9px;
}

.nav ul li a:hover {
    color: #27ba9b;
    border-bottom: 2px solid #27ba9b;
}

/* 搜索框 */
.search {
    position: relative;
    float: left;
    width: 171px;
    height: 30px;
    margin: 24px 0 0 34px;
    border-bottom: 2px solid #e7e7e7;
}

.search input {
    width: 171px;
    height: 28px;
    padding-left: 30px;
}

.search input::placeholder {
    font-size: 14px;
    color: #d0d0d0;
}

.search span {
    position: absolute;
    top: 5px;
    left: 0;
    width: 18px;
    height: 18px;
    background: url(../images/sprites.png) no-repeat -80px -70px;
}

/* 购物车 */
.shopping-cart {
    position: relative;
    float: left;
    margin-top: 23px;
    margin-left: 33px;
    width: 22px;
    height: 22px;
    background: url(../images/sprites.png) no-repeat -120px -70px;
}

.shopping-cart span {
    position: absolute;
    top: -6px;
    right: -13px;
    width: 20px;
    height: 15px;
    background-color: #e26237;
    border-radius: 8px;
    font-size: 13px;
    color: #fff;
    text-align: center;
    line-height: 15px;
}

/* 公共底部 */
.xtx_footer .contact {
    padding: 80px 0 80px 59px;
}

.contact dl {
    float: left;
    height: 190px;
    text-align: center;
    padding: 0 70px;
    color: #999999;
}

.contact dl:first-child {
    padding-left: 0;
}

.contact dl:last-child {
    padding-right: 0;
}

.contact dl dt {
    line-height: 1;
    font-size: 18px;
}

.contact dl dd {
    float: left;
    margin-top: 36px;
    margin-right: 7px;
    text-align: center;
    font-size: 14px;
}

.contact dl .service,
.contact dl .feedback,
.contact dl .weixin,
.contact dl .weibo {
    width: 92px;
    height: 92px;
    border: 1px solid #ededed;
}

.contact dl dd:last-child {
    margin-right: 0;
}

.contact dl .code {
    width: 92px;
    height: 92px;
    border: 1px solid #ededed;
}

.contact dl .code img {
    width: 100%;
    height: 100%;
    padding: 5px;
}

.contact dl .service::before,
.contact dl .feedback::before,
.contact dl .weixin::before,
.contact dl .weibo::before {
    content: '';
    display: block;
    width: 35px;
    height: 29px;
    background-image: url(../images/sprites.png);
    margin: 21px 30px 10px;
}

.contact dl .service::before {
    /* background-position: -205px -70px; */
    background-position: -250px -70px;
}

.contact dl .service:hover::before {
    background-position: -205px -70px;
}

.contact dl .feedback::before {
    background-position: -350px -70px;
}

.contact dl .feedback:hover::before {
    background-position: -300px -70px;
}

.contact dl .weixin::before {
    background-position: -250px -15px;
}

.contact dl .weixin:hover::before {
    background-position: -205px -15px;
}

.contact dl .weibo::before {
    background-position: -350px -15px;
}

.contact dl .weibo:hover::before {
    background-position: -300px -15px;
}

.contact dl .download {
    width: 106px;
    padding-top: 5px;
}

.contact dl .download span {
    display: block;
}

.contact dl .download a {
    width: 106px;
    height: 34px;
    display: block;
    background-color: #27ba9b;
    line-height: 1;
    color: #fff;
    margin-top: 10px;
    padding: 10px 25px;
    border-radius: 2px;
}

.contact dl .hotline {
    padding-top: 20px;
    font-size: 22px;
}

.contact dl .hotline small {
    display: block;
    font-size: 15px;
    color: #999999;
}

/* 其他 */
.extra {
    background-color: #333333;
}

.extra .slogin {
    padding: 60px 100px;
    height: 178px;
    border-bottom: 1px solid #434343;
    text-align: justify;
}

.extra .slogin::after {
    content: '';
    display: inline-block;
    width: 100%;
    height: 0;
}

.extra .slogin a {
    display: inline-block;
    height: 58px;
    line-height: 58px;
    font-size: 28px;
    color: #fff;
}

.extra .slogin a::before {
    content: '';
    width: 58px;
    height: 58px;
    float: left;
    margin-right: 10px;
    background-image: url(../images/sprites.png);
    /* background-size: 400px 400px; */
}

.extra .slogin .price::before {
    background-position: 0 0;
}

.extra .slogin .logistics::before {
    background-position: -130px 0;
}

.extra .slogin .quality::before {
    background-position: -65px 0;
}

.extra .copyright {
    height: 170px;
    padding-top: 42px;
    text-align: center;
    color: #999999;
    font-size: 15px;
}

.extra .copyright p {
    line-height: 1;
    margin-bottom: 20px;
}

.extra .copyright p:first-child a {
    color: #999;
    line-height: 1;
    border-right: 1px solid #999;
    padding: 0 10px 0 6px;
}

.extra .copyright:first-child a:last-child {
    border-right: 0;
}